Port Function Controller; Port Function Control Register 9 (Pfcr9) - Renesas H8SX/1500 Series Hardware Manual

8.3

Port Function Controller

The port function controller controls the I/O ports.
The port function controller incorporates the following registers.

• Port function control register 9 (PFCR9)*

• Port function control register A (PFCRA)
• Port function control register B (PFCRB)
Note: * PFCR9 is supported only by the H8SX/1527.
8.3.1 Port Function Control Register 9 (PFCR9)
PFCR9 selects the multiple functions for the TPU (unit 0) I/O pins.
Bit 7
Bit Name -
Initial Value 0
R/W R/W
Bit Bit Name

7, 6
5 TPUMS3A 0
4 TPUMS3B 0
6 5
- TPUMS3A
0 0
R/W R/W
Initial
Value R/W Description
All 0 R/W Reserved
These bits are always read as 0. The write value should
always be 0.
R/W TPU I/O Pin Multiplex Function Select
Selects TIOCA3 function
0: Specifies P21 as output compare output and input
1: Specifies P20 as input capture input and P21 as output
R/W TPU I/O Pin Multiplex Function Select
Selects TIOCC3 function
0: Specifies P22 as output compare output and input
1: Specifies P23 as input capture input and P22 as output
4 3
TPUMS3B TPUMS2
0 0
R/W R/W
capture
compare
capture
compare
Rev. 3.00 Mar. 14, 2006 Page 243 of 804
Section 8 I/O Ports
2 1
TPUMS1 TPUMS0A TPUMS0B
0 0
R/W R/W
REJ09B0104-0300
0
0
R/W